Lubrication for tractors



L. W. MELC HER.

LUBRICATION FOR TRACTORS.

APPLICATION FILED JUNE 12, l9l8.

1,334,547. Patented Mar. 23, 1920.

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L. W. IVIELCHER.

LUBRICATION FOR TRACTORS.

APPLICATION FILED JUNE 12. 1918.

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cw T E E w ll a 3 L. W. MELCHE R.

LUBRIQATION FORIRACTORS. APPLICATION FILED JUNE 12, 1,918.

Patented Mar. 23, 1920.

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Eweniarx specification of Letters Patent. P t t d ltjm application filed June it, told Serial it'o. titfitttdtl.

Illa all whom may concern:

Be it that l, LEE W. Miencnnn, a. citiaen of the llnited Estates, and a resident lha theses, in the county or La Crosse and oi Wisconsin, have invented certain new and useful improvements in Lubrication ifor 'ltinctors, oil which the following is a t'ull clear, and enact description.

The invention relates to lubrication for trantorst lin practice, it has been found that a motor will be more elliciently lubricated by gradual supply of t'reshlubricating oil, but for economy it has been generally the practlce to permit the oil to remain in the cranlo case until it has been consumed Une obiect oi present invention is to provide an improved lubricating system lIl wh ch o l has been used in the motor tor a time is delivered to the transmission gearing to keep the latter lubricated. The oil from. the

inotor has been found to be suliicient for luhricating the earing on the tractor and this way oil is used tor a time 111 the motor v and then delivered to the gearing.

it further object at the invention is to provide improved means for lubricating the gearing tor driving the tractionwheels.

The invention consists in the several novel ileatures hereinafter set forth and more par ticularly defined by claims at the conclusion hereoit. I

in the drawings: Figure l is a plan of a portioi'i ot a tractor embodying the invention, the traction wheels being shown 111 section. ltig. 5?; is a vertical section taken on line 2-2 oi? Fig. 1. Fig. 3 is a transverse section taken on line 33 of Fig. l.

The invention is shown as applied to a tractor comprising a supporting frame 6 of any suitable construction, an axle 7 from which the frame is suspended, tractionwheels E3 in which the ends of the axles are respectively held a motor 9 suitably mounted on the frame. internally toothed geari-ings 10 secured to the traction-wheels respectively, pinions ill for engaging said gear-rings respectively, differential gearing 12 connected to the pinions 11 by shafts 13 1 and 14: respectively. The difiierential gearing comprises a gear-wheel 15 that is driven hy a pinion it on a shaltt 1?, which is driven by suitable variable speed transmission gear iris; (not shown) from the motor in any suitable manner. The ditlerential gearing;

also comprises pinions 18 mounted on the radial arloors in the gear 15 which. mesh with gears 19 and 20 on the ends ot the she its 13 and it respectively to drive the pinions and traction wheels at the sides at the tractor respectively,

A case comprises a lower section Q2 which is joined to the trains it, as at til, cover section 2t and a hack-section as. 'lihese sec tions together term a case for the didterential ea gearing and pinion Ltd which is adapted to contain lubricating" oil, llluloricant will be fed to the crank-case or the motor in any well known manner and a pipe 26 conducts the ovcrllow from the crank-case oi the to motor into the did'erential-gear case The gear 15 rotates in the accumulation ct oil on the hottoin ot the case, splashes it in the case and carries some at it upwardly and throws it adjacent the top of the gearing. The top it of this case is formed with downwardly and outwardly sloping walls .28 and Q9 Al the sides of the gear 15 inclined walls 30 are formed on the sides of the case and these torin oil pockets 33, one at each side of said so gear. Centrifugal torce causes the oil to be thrown from the gear 15 against the divergent walls 28 and 29 and from the latter the oil drips into the pockets 33 at the sides of gear 15. (in the end wall 27 of the case, there islorined a baffle ill that slopes laterally and downwardly from its middle and inwardly lroin wall 2'? to direct the oil splashed against the end-wall M laterally into the oil-pockets 38. From each of the no oil-pockets 33, a pipe 32 leads to one of the pinions ll to lubricate said pinitns and the gear-rings 10 on the traction-wheels. 'lhe splash in the case lubricates gears 19 and 20 and pinions 18. 9a

The invention exemplifies an iniprovedx lubricating system in which the overflow from the motor is utilized to lubrieatethe 'diderential gearing and is distributed by said gearing for delivery to the pinions and too geanrings for driving the traction wheels. Also a simple structure by which luhricant is delivered from the transmission gearing" to the drive pinions in the traction-wheels. Also a lubricating system that is simple in construction and includes no special operat inn" means such as a pump.

The invention is not to be understood as restricted to the details set tortln since. these may be modified within the scope of the apare pended claims, without departing from the spirit and scope of the invention.

Having thu described the invention, what I claim as new and desire'to secureby L'etters Patent, is: I a 1 The combination with a tractor, comprising a frame, a motor on the frame, traction wheels, and gearingfor driving tht'r'action-wheels, of means for delivering fresh prising a frame, a motor on theframe,-traction wheels at'the sides respectively, trans-V mission gearing driven by the motor, a case for saidgearing adapted to contain lubricant, and gears outside of'thecase, driven by the transmission gearingfior driving the traction Wheels respectively, of me-ans for conducting'lubricant from the motorto said case, and means for conductingsplash lubri- 'ant from the case to said" gears. v

4. The combination with a tractor comprisin a frame, a'motor, transmission gearing drlven by the motor, a casefor said gearing, traction wheels, gears and pinions driven by the transmission gearing, for driving the traction wheels respectively and disposed outside of the case, of means in said case to receive the lubricant splashed by the transmlssion gearlng, and means for conducting lubricant from the receiving means to the outside ofthe case andtothe gears and pinions for driving the traction wheels respectively.

5. The combination with a tractor coniprising a 'frame, a motor, traction wheels, transmission gearing driven by the motor, a case for said gearing adapted to contain lubricant and gears outside of the case for driving'the traction wheels, of separate-oil pockets adapted to receive lubricant splashed in the case, and means for separately conducting lubricant from 'the pockets to the gears respectively.

6. The combination with a tractor comprising a frame, a motor, traction wheels, transmission-gearing driven by the motor, a case for said gearing adapted to contain lubricant and. gears outside of the case for driving the traction wheels, of separate oil pockets adapted to receive lubricant splashed in the case, a distributing means to deflect the splashed lubricant into said pockets, and means for'searately conducting lubricant from the poo ets to the-gears respectively.

7. The combination with a tractor comprising a frame, a motor, traction wheels, transmission gearing and a case for said gearing-adapted to contain lubricant, of separate oil pockets'at the 'sides'of the ease adapted tou'eeeive splashed lubricant, a distributing device in the case for directing the lubricant into said pockets, a plurality of elements to be lubricated, and means for separately conducting the lubricant from said pockets to said elements.

LEE W. MELCHER. 

